Using Main colour:
Small: (K3, K2 tog) to last 4 sts, K to end of round. Stitch Count: 116sts
Medium: (K3, K2 tog) to end of round. Stitch Count:128sts
Large: (K3, K2 tog) to last 3 sts, K to end of round. Stitch Count: 135sts
Extra Large: (K3, K2 tog) to last 4 sts, K to end of round. Stitch Count: 148sts